. >> if this amount of energy had been detonated at ground level instead of 10 miles up, it would have probably leveled every single building in an area the size of chicago. >> reporter: that's hundreds of thousands, maybe millions dead. >> it's hard to think about that the possibility could be that, but it's there. >> reporter: the explosion blew out windows in thousands of apartment buildings sending glass shards flying. no one was killed. among the jur injured two00 children. more than 300 schools sustained damage. a wall at a zinc factually claeped. the region's governor promised to replace all the broken windows in a week, a long way where the temperature was 12 below zero. tony guida cbs news, new york. >> axelrod: the russians weren't the only ones looking up and seeing meteors purpose there were two other apparent meteor sightings reported last night one over cuba and then look at the upper right part of your screen. this image was captured in san francisco. neither of these other two meteors caused any injuries or damage. joining us now for more on all this activity above eart